@aayush-nandan Male infertility is a condition wherein a man is unable produce enough quality sperm to make his female partner pregnant. There are different tests that can be performed to ascertain male infertility and these also helps in knowing the cause of the condition. Major causes of male infertility are:
Azoospermia: It is a sperm disorder in which no sperm is produced and is the primary cause of male infertility.
Oligospermia: It is another disorder that can be the culprit and cause male infertility.
Teratozoospermia: When a man's sperms are of different shapes and sizes, they are unable to fertilise the egg, resulting in the male infertility.